I find this on their official blog and want to share with you:

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We have learned that a small percentage of our SSDNow V100 sold in the past has experienced a technical issue on the firmware. Kingston strongly recommends that a firmware update be applied to all SSDNow V100 drives to prevent possible data loss.


For full information and update the firmware:
http://www.kingston-blog.com/en/news...=1&main_id=399